Describing U.S. relations with Russian Federation as being "at a very low point", Tillerson added: "At this point it's very hard to say what Russia's intentions are in this relationship". Follow-up talks this week in Astana, Kazakhstan, failed to reach agreement on how to finalize a cease-fire in those zones.
The three countries have been successfully mediating talks between the Syrian government and opposition in the Kazakh capital of Astana since January. That move covered southern provinces of Daraa, Quneitra and Sweida.
We review the key developments in Syria, including the stalling of the Astana talks, USA plans to work with Russian Federation on operations to stabilize the region, and military deployments that could become a flashpoint for conflict between Turkey and the YPG in northern Syria. Trump's administration has approached the notoriously strained relationship by trying to identify a few limited issues on which the countries could make progress, thereby building trust for a broader fix of ties.
"Terrorism is our number one enemy and to fight it we have to put everything else aside", Lavrov, whose country supports the Syrian regime of Bashar al Assad, said in a joint statement. He said the US-Russia co-operation would create stability in Syria as US-backed forces continue their assault on the Islamic State group. "Russia is neither capable nor willing to give us what we want in Syria", Lister said.
When asked why the USA has confidence a ceasefire will succeed this time after multiple failures in the past, Tillerson said what's different now is "the level of commitment on the part of the Russian government" and "where we are relative to the whole war against ISIS".
Merkel takes aim at US policy ahead of G20 meeting with Trump
German authorities are bracing for trouble in Hamburg as they are anxious that the protests could turn violent. The highly-anticipated first meeting will come on the sidelines of the summit in Hamburg, Germany .
This could include "no-fly zones, on the ground ceasefire observers, and coordinated delivery of humanitarian assistance", Tillerson said.
The secretary's statement also floated the idea that, if the creation of such zones is successful, "it will lay a foundation for progress on the settlement of Syria's political future". "We see no place for the Assad family in the political future of Syria", added Tillerson.
Tillerson warned the Syrian regime, which is backed by Iran as well as Russian Federation, against taking advantage of America's limited focus by moving into areas freed from the Islamic State, also known as ISIS.
Tillerson said all actors in the Syrian military theater must follow guidelines to avoid accidents in the air and on the ground.